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BMD [Baby Meta Doge] Token

About BMD

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Token 7 months

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Laser Scorebeta Last Audit: 30 November 2021

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Token seems to be anonymous. As long as we are unable to find website score is limited.

BuybackBabyToken.buyTokens(uint256,address) (#1355-1363) sends eth to arbitrary user
Dangerous calls:
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#1360-1362)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in BuybackBabyToken._transferFrom(address,address,uint256) (#1155-1195):
External calls:
- swapBack() (#1165)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#1283-1289)
- distributor.deposit{value: amountBNBReflection}() (#1306)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#1310-1317)
- triggerAutoBuyback() (#1168)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#1360-1362)
External calls sending eth:
- swapBack() (#1165)
- distributor.deposit{value: amountBNBReflection}() (#1306)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#1307)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#1310-1317)
- triggerAutoBuyback() (#1168)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#1360-1362)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#1171-1174)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#1180)
- amountReceived = takeFee(sender,recipient,amount) (#1176-1178)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#1251)
- triggerAutoBuyback() (#1168)
- inSwap = true (#1006)
- inSwap = false (#1008)
Apply the check-effects-interactions pattern.

Additional information: link

DividendDistributor.distributeDividend(address) (#837-854) ignores return value by rewardToken.transfer(shareholder,amount) (#845)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link


Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Combination 2: Unchecked transfer + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Reentrancy in DividendDistributor.setShare(address,uint256) (#756-776):
External calls:
- distributeDividend(shareholder) (#762)
- rewardToken.transfer(shareholder,amount) (#845)
State variables written after the call(s):
- shares[shareholder].amount = amount (#772)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#773-775)
Apply the check-effects-interactions pattern.

Additional information: link

BuybackBabyToken.swapBack() (#1265-1320) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#1310-1317)
Ensure that all the return values of the function calls are used.

Additional information: link

BuybackBabyToken.setTargetLiquidity(uint256,uint256) (#1464-1470) should emit an event for:
- targetLiquidity = _target (#1468)
- targetLiquidityDenominator = _denominator (#1469)
Emit an event for critical parameter changes.

Additional information: link

BuybackBabyToken.setFeeReceivers(address,address)._marketingFeeReceiver (#1450) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#1453)
Check that the address is not zero.

Additional information: link

Reentrancy in BuybackBabyToken.triggerZeusBuyback(uint256,bool) (#1331-1340):
External calls:
- buyTokens(amount,DEAD) (#1335)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#1360-1362)
State variables written after the call(s):
- buybackMultiplierTriggeredAt = block.timestamp (#1337)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BuybackBabyToken.triggerZeusBuyback(uint256,bool) (#1331-1340):
External calls:
- buyTokens(amount,DEAD) (#1335)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#1360-1362)
Event emitted after the call(s):
- BuybackMultiplierActive(buybackMultiplierLength) (#1338)
Apply the check-effects-interactions pattern.

Additional information: link

BuybackBabyToken.isOverLiquified(uint256,uint256) (#1496-1502) uses timestamp for comparisons
Dangerous comparisons:
- getLiquidityBacking(accuracy) > target (#1501)
Avoid relying on block.timestamp.

Additional information: link

Clones.predictDeterministicAddress(address,bytes32,address) (#287-302) uses assembly
- INLINE ASM (#292-301)
Do not use evm assembly.

Additional information: link

BuybackBabyToken.onlyBuybacker() (#1011-1014) compares to a boolean constant:
-require(bool,string)(buyBacker[msg.sender] == true,Not a buybacker) (#1012)
Remove the equality to the boolean constant.

Additional information: link

DividendDistributor.process(uint256) (#799-825) has costly operations inside a loop:
- currentIndex ++ (#822)
Use a local variable to hold the loop computation result.

Additional information: link

SafeMath.trySub(uint256,uint256) (#36-41) is never used and should be removed
Remove unused functions.

Additional information: link

solc-0.8.4 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Constant BuybackBabyToken._decimals (#952) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Reentrancy in BuybackBabyToken.swapBack() (#1265-1320):
External calls:
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#1307)
External calls sending eth:
- distributor.deposit{value: amountBNBReflection}() (#1306)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#1307)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#1310-1317)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#1318)
Apply the check-effects-interactions pattern.

Additional information: link

Variable BuybackBabyToken._totalSupply (#956) is too similar to BuybackBabyToken.constructor(string,string,uint256,address,address,uint256[5],address,uint256).totalSupply_ (#1019)
Prevent variables from having similar names.

Additional information: link

BuybackBabyToken.constructor(string,string,uint256,address,address,uint256[5],address,uint256) (#1016-1068) uses literals with too many digits:
- distributorGas = 500000 (#1041)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

setFees(uint256,uint256,uint256,uint256,uint256) should be declared external:
- BuybackBabyToken.setFees(uint256,uint256,uint256,uint256,uint256) (#1411-1425)
Use the external attribute for functions never called from the contract.

Additional information: link


Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

Holders:


Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.


Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.


Token is deployed only at one blockchain


Token has only one trading pair


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute volume.


Unable to find PancakeSwap trading pair to compute number of swaps.


Unable to find Telegram and Twitter accounts


Unable to find website, listings and other project-related information


Young tokens have high risks of price dump / death


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank

Price for BMD